Kidslearningtubium is a hypothetical element with atomic number 818 and symbol Klt. It was named after Kid's Learning Tube, an educational site that made videos about the crews of the periodic table. Just like all the elements after Lead (excluding Stableisotopium), Kidslearningtubium has no stable isotopes. Its most stable one is 2044Klt, with its half life being 9.1 milliseconds. Its systematic name is Octunoctium (Ouo)
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